Delta flights from South Africa have been forced to make stops in places like Boston and Puerto Rico because of ‘payload’ issues

Two Delta Air Lines flights from South Africa have had to make fuel stops in the past week. A mix of worsening weather conditions for aircraft and increased passenger and/or cargo count might be to blame, experts say.  Both flights, operating from Johannesburg to Atlanta, were operated by Airbus A350-900 XWB planes.  Loading Something is…